In fact, as stated by Perc and Szolnoki [1]}, the spatial
coevolutionary game is a natural upgrade of the traditional spatial
evolutionary game initially proposed by Nowak and May [2]}, who
considered static and unweighted networks in which each individual can interact
only with its immediate neighbours. In general, it has been shown that
coevolving the spatial structure can promote the emergence of cooperation in
many scenarios [3]}, [4]}, but the understanding of cooperative
behaviour is still one of the central issues in evolutionary game theory.
